DocSpace-buildtools/common/services/ASC.Data.Backup.BackgroundTasks/Services/BackupSchedulerService.cs

/*
 *
 * (c) Copyright Ascensio System Limited 2010-2020
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namespace ASC.Data.Backup.Services;

[Singletone]
public sealed class BackupSchedulerService : BackgroundService
{
    private readonly TimeSpan _backupSchedulerPeriod;
    private readonly ILog _logger;

    private readonly CoreBaseSettings _coreBaseSettings;
    private readonly IServiceScopeFactory _scopeFactory;
    private readonly IEventBus _eventBus;

    public BackupSchedulerService(
        IOptionsMonitor<ILog> options,
        IServiceScopeFactory scopeFactory,
        ConfigurationExtension configuration,
        CoreBaseSettings coreBaseSettings,
        BackupWorker backupWorker,
        IEventBus eventBus)

    {
        _logger = options.CurrentValue;
        _coreBaseSettings = coreBaseSettings;
        _backupSchedulerPeriod = configuration.GetSetting<BackupSettings>("backup").Scheduler.Period;
        _scopeFactory = scopeFactory;
        _eventBus = eventBus;
    }

    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
    {
        _logger.Debug("BackupSchedulerService is starting.");

        stoppingToken.Register(() => _logger.Debug("#1 BackupSchedulerService background task is stopping."));

        while (!stoppingToken.IsCancellationRequested)
        {
            using var serviceScope = _scopeFactory.CreateScope();

            var registerInstanceService = serviceScope.ServiceProvider.GetService<IRegisterInstanceManager<BackupSchedulerService>>();

            if (!await registerInstanceService.IsActive(RegisterInstanceWorkerService<BackupSchedulerService>.InstanceId))
            {
                _logger.Debug($"BackupSchedulerService background task with instance id {RegisterInstanceWorkerService<BackupSchedulerService>.InstanceId} is't active.");

                await Task.Delay(1000, stoppingToken);

                continue;
            }

            _logger.Debug("BackupSchedulerService background task is doing background work.");

            ExecuteBackupScheduler(stoppingToken);

            await Task.Delay(_backupSchedulerPeriod, stoppingToken);
        }

        _logger.Debug("BackupSchedulerService background task is stopping.");
    }

    private void ExecuteBackupScheduler(CancellationToken stoppingToken)
    {
        using var serviceScope = _scopeFactory.CreateScope();

        var paymentManager = serviceScope.ServiceProvider.GetRequiredService<PaymentManager>();
        var backupRepository = serviceScope.ServiceProvider.GetRequiredService<BackupRepository>(); ;
        var backupSchedule = serviceScope.ServiceProvider.GetRequiredService<Schedule>();
        var tenantManager = serviceScope.ServiceProvider.GetRequiredService<TenantManager>();

        _logger.DebugFormat("started to schedule backups");

        var backupsToSchedule = backupRepository.GetBackupSchedules().Where(schedule => backupSchedule.IsToBeProcessed(schedule)).ToList();

        _logger.DebugFormat("{0} backups are to schedule", backupsToSchedule.Count);

        foreach (var schedule in backupsToSchedule)
        {
            if (stoppingToken.IsCancellationRequested) return;

            try
            {
                if (_coreBaseSettings.Standalone || tenantManager.GetTenantQuota(schedule.TenantId).AutoBackup)
                {
                    var tariff = paymentManager.GetTariff(schedule.TenantId);

                    if (tariff.State < TariffState.Delay)
                    {
                        schedule.LastBackupTime = DateTime.UtcNow;

                        backupRepository.SaveBackupSchedule(schedule);

                        _logger.DebugFormat("Start scheduled backup: {0}, {1}, {2}, {3}", schedule.TenantId, schedule.BackupMail, schedule.StorageType, schedule.StorageBasePath);

                        _eventBus.Publish(new BackupRequestIntegrationEvent(
                                                 tenantId: schedule.TenantId,
                                                 storageBasePath: schedule.StorageBasePath,
                                                 storageParams: JsonConvert.DeserializeObject<Dictionary<string,string>>(schedule.StorageParams),
                                                 storageType: schedule.StorageType,
                                                 backupMail: schedule.BackupMail,
                                                 createBy: ASC.Core.Configuration.Constants.CoreSystem.ID,
                                                 isScheduled: true,
                                                 backupsStored: schedule.BackupsStored                                                
                                          ));
                    }
                    else
                    {
                        _logger.DebugFormat("Skip portal {0} not paid", schedule.TenantId);
                    }
                }
                else
                {
                    _logger.DebugFormat("Skip portal {0} haven't access", schedule.TenantId);
                }
            }
            catch (Exception error)
            {
                _logger.Error("error while scheduling backups: {0}", error);
            }
        }
    }
}